140979 has 4 divisors (see below), whose sum is σ = 187976. Its totient is φ = 93984.

The previous prime is 140977. The next prime is 140983. The reversal of 140979 is 979041.

140979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

140979 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140979 - 2¹ = 140977 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23494 + ... + 23499.

It is an arithmetic number, because the mean of its divisors is an integer number (46994).

2¹⁴⁰⁹⁷⁹ is an apocalyptic number.

140979 is a deficient number, since it is larger than the sum of its proper divisors (46997).

140979 is an equidigital number, since it uses as much as digits as its factorization.

140979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46996.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 140979 is about 375.4717033280. The cubic root of 140979 is about 52.0456945486.

The spelling of 140979 in words is "one hundred forty thousand, nine hundred seventy-nine".